Hi looks like you will need a receiver and a subwoofer.. but there may be one problem with your speakers are the Frons and the center channel matched?? There will be timbre issues with it if they are not..
Also we will need to know of a Budget for your parts you will need to buy, that is always a key in your decision to what you can get.. OR some smarty pants will recommend a Seaton Submersive
Once we know your budget we can give a better response to your needs.. Also what do you want the reviver to do, 5.1, 7.1, 9.2 that is the speakers it uses.. what will you be hooking up to it, Nintendo Wii, Xbox, how about a Blu ray player, do you need a HDTV??
There is so much more needed then just speakers but it depends what you want.. Are you going to watch just Cable TV or are you looking for Netflix, or other similar streaming services??
here is a list of questions I will pose to you in order:
1. Do you want a HDTV?? Are you looking to go 3D??
2. You will most likely need a Reciever, do you want it too be a networked kind for Streaming of your MP3's and such..
3. Do you want a Blu ray or DVD Player?? Does it need to be 3D if Blu ray??
4. Last but not least you will most likely want a subwoofer, Now many factors are in for this, do you have a size requirement, Budget or any kind of other restraints Color wise, Size, Price.. Subs can go for 100 to over 4000 dollars and in all kinds of falveros and sizes..
4a. What is the size of your Room for the Home theater?? what are the floors made of Wood Cement or other??